static int spmi_controller_wait_for_done()

in hisi-spmi-controller.c [82:109]

• 24 lines of code
• 4 McCabe index (conditional complexity)

static int spmi_controller_wait_for_done(struct device *dev,
					 struct spmi_controller_dev *ctrl_dev,
					 void __iomem *base, u8 sid, u16 addr)
{
	u32 timeout = SPMI_CONTROLLER_TIMEOUT_US;
	u32 status, offset;

	offset  = SPMI_APB_SPMI_STATUS_BASE_ADDR;
	offset += SPMI_CHANNEL_OFFSET * ctrl_dev->channel + SPMI_SLAVE_OFFSET * sid;

	do {
		status = readl(base + offset);

		if (status & SPMI_APB_TRANS_DONE) {
			if (status & SPMI_APB_TRANS_FAIL) {
				dev_err(dev, "%s: transaction failed (0x%x)\n",
					__func__, status);
				return -EIO;
			}
			dev_dbg(dev, "%s: status 0x%x\n", __func__, status);
			return 0;
		}
		udelay(1);
	} while (timeout--);

	dev_err(dev, "%s: timeout, status 0x%x\n", __func__, status);
	return -ETIMEDOUT;
}